Word: wax
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Where the Lost Wax Went...
...tracing the "lost wax" process used by Greek sculptors in the Art story "Young Man of Piraeus" [March 30], you describe a final step: "Molten bronze poured between the two clay surfaces melted the wax and replaced it, forming a hollow statue of bronze filled with irremovable clay." The wax, in any "lost wax" process, cast today as well as in ancient times, always has to be burned out of the mold before the bronze can be poured...
...Reader Spring's foundry, where Sculptor Jacques Lipchitz' statues are cast, burns out wax in the traditional way by placing the double-thick clay mold in a kiln fired to 1,200°F. Some of the wax escapes through a small hole in the cast, but most of it is absorbed by the porous clay...
Bronze Tuberculosis. Hospitalized in the laboratory of the National Museum in Athens, the kouros was tenderly nursed back to bronze health. Ancient Greek sculptors used the "lost wax" process, making their original models of wax-covered clay. When the final details had been modeled in the wax, a second layer of clay was molded around it. Molten bronze poured between the two clay surfaces melted the wax and replaced it, forming a hollow statue of bronze filled with irremovable clay...
...Civil War is finally over--at least at the Museum of Fine Arts.--Now Camille Pissarro holds the spot light alone in a print show the Museum insists on calling "an early touch of spring." Well, let the Museum wax rhapsodic--Pissarro is a pretty good...